26988705

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{20681}}^1$

素因数の和:20721

約数の個数: 24

約数和(自身を含む): 48395880

約数和(自身を除く): 21407175

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 20681, 62043, 103405, 186129, 310215, 599749, 930645, 1799247, 2998745, 5397741, 8996235, 26988705]

約数ペア:

[(1, 26988705), (3, 8996235), (5, 5397741), (9, 2998745), (15, 1799247), (29, 930645), (45, 599749), (87, 310215), (145, 186129), (261, 103405), (435, 62043), (1305, 20681)]